About the Platform

From satellite images to restoration decisions

Indonesia has enormous potential to expand brackish Nile Tilapia production. Underused and abandoned coastal ponds can be ideal locations to grow these fish; however, identifying the right sites at scale requires technical innovation. The COAST Restoration Mapping tool brings together satellite-derived pond activity classification, water quality indices, tidal range analysis, and environmental risk layers into a single interactive map, so that restoration decisions can be made with precision and speed.

Criteria for restoration

A pond is considered a strong candidate for restoration to grow Nila Salin when it is already inactive; falls within the tidal influence zone; and meets baseline water quality thresholds for salinity and turbidity. The platform makes these conditions visible, layer upon layer, across the entire target coastline.

Map layers

What you can explore

Toggle layers to build your picture of any site. Each layer is derived from peer-reviewed remote sensing methods and calibrated against field data from the 2025 ground-truth mission.

Workflow

1. Define your area of interest. Navigate to the target regency or coastline segment. Use the region selector or pan and zoom freely across North and West Java.
2. Filter by pond activity. Toggle the pond activity layers to display inactive ponds only. These represent the primary restoration opportunity set of ponds.
3. Cross-reference with environmental layers. Overlay the tidal range, flood plain, and salinity layers to identify which inactive ponds fall within suitable environmental conditions for Nila Salin production.
4. Assess water quality. Use the NDSI and NDTI layers to evaluate salinity and turbidity at pond scale. Sites with moderate, stable salinity and low turbidity are preferred candidates.
5. Shortlist and export priority sites. Click any pond to view its full attribute profile. Use these filters to build a shortlist of priority restoration sites for field verification or programme planning.

Designed for decision-makers at every level

Ministry of Marine Affairs and Fisheries (MMAF)

National-level site prioritisation and programme targeting for the 20,000 ha restoration initiative.

Regional government offices

Regency-level identification of restoration opportunities aligned with local aquaculture extension activities.

COAST programme team

Field mission planning, ground-truth validation targeting, and monitoring of restoration progress over time.

Aquaculture extension officers

Rapid site screening before engaging with smallholder farmers on pond restoration and stocking.